Lamp



June 28, 1938. ov c 2,122,375

LAMP

Filed Nov. 15, 1935 Patented June 28, 1938 I UNITED STATES,

LAMP

Rudolph Konc, Chicago, 111., minor to American Au notation of Illinoistomatic Devices 00., Chicago, 111., a cor- Application November 15,1935, Serial No. 49,868

lclalm.

- My invention relates to lamps'of a type adapted to be lighted bycurrent from the storage battery of a truck for use at one side of thetruck, or in any other suitable position as desired, and it has 5 forits object the provision of a new and improved form and arrangement ofparts in a device of this character by which the lamp may be readilysecured in position below the body of a truck or the like so as to beheld normally in balanced position below its support and so'as to becapable of yielding for swinging out of such balanced position when itcomes into contact with an obstruction or otherwise has pressure appliedthereto. 15 It is another object of my invention to improve theconstruction of a lamp of this type by reason of which the parts can beproduced and assembled with a minimum of trouble and expense. It is Ianother object of my invention to improve devices of this type in sundrydetails hereinafter pointed out. The preferred means'by which I haveaccomplished my several objects are illustrated in the drawing and arehereinafter specifically described. That which I believe to be new anddesire to cover by Letters Patent is set forth in the claim. I

In the drawing, Fig. 1 is a side viewof my improved lamp including themeans for mounting it in position; 9 Fig. 2 is a front face view of thelamp as shown in Fig. 1;

. Fig. 3 is a central vertical section through the preferred form of mylamp; and

Fig. 4 is a rear face view of the support by which 5 my lamp is hung inposition.

Referring now to the several figures of the drawing, in whichcorresponding parts are indicated by the same reference characters, Illindicates a ring formed of sheet metal and having a 40 lug l I extendingupwardly therefrom, the ring being arranged for supporting the body ofthe lamp as hereinafter described. Attached to the lug II and risingtherefrom is a flexible strap 12 formed of fiber or other suitablematerial, a

45 bracket l3 being secured to the upper end of the strap l2 formounting it in position beneath the body of a truck or the like. Thestrap I2 is secured to the lug Ii and the bracket l3 by means of rivetsl4, plates I 5 and I6 being employed on 50 the rear face portions of thestrap l2 for reinforcing the structure. Between the plates I5 and I5 Ihave provided an electrical conductor ll to serve as a ground from thebody of the lamp to the bracket 13 and thence to the body of the 55truck or other framework, such electrical conduetor in the arrangementshown being in the form of a band braided out of copper wires and bentupon itself so as to provide a loop portion l8 therein. As will bereadily understood, the strap 60 I2 and the looped conductor II areadapted to bend very readily flatwise in either direction while servingto hold the ring fairly rigidly against movement edgewise.

In the construction illustrated, my lamp comprises a dished casingmember l9 formed of sheet 5 metal having an enlarged annular portion 20at its forward end adapted to act as a stop for limiting the backwardmovement of the member through the ring Ill. The casing member I9 isheld in position in the ring by a plurality of ribs 2| pressed outwardlyin the metal of the member in rear of the ring I0 as is clearly shown inFig. 3. The front end of the casing member I9 is closed by a dished lens22 which fits in the enlarged portion 20 of the casing member IS, agasket 23 being interposed between the lens and the casing member, andthe lens being held in position by means of a resilient split ringdevice 24 which bears against an outwardly turned flange 25 on the lensand against the inner face of the enlarged portion 20 of the housing. Atits rear face, the casing member I9 is provided with a forwardlyextending sleeve 26 into which an electric light bulb 21 is adapted tobe mounted operatively so as to have electrical connection with thecasing member l9 and with an electric wire 28.

By the use of my improved construction, with the lamp mounted inbalanced position below the flexible strap l2, the lamp is normallysupported in such balanced position while being at the same 80 time freeto move either backwardly or forwardly to a considerable distance incase it should come in contact with an obstruction or in case pressureshould otherwise be applied thereto. By the use of the arrangement asshown and described for connecting the parts together, I have provided astructure which can be very quickly and easily assembled so as to keepdown the cost of construction of the lamp as a whole.

While I prefer to employ the form of construction as shown in' mydrawing and as above described, it is to be understood that theinvention is not limited specifially to the arrangement shown, since itwill be understood that changes might well be made without departingfrom the spirit of my invention.

I claim:

In a lamp of the type described, the combination of a bracket, a flatstrip attached at 0 one end to saidv bracket'a'nd adapted to bendreadily flatwise but comparatively much more stiff edgewise, a casingconnected to the other end of said strip, and a flexible conductor alsoin the form of a flat strip and bent flatwise into the form of a loopand connecting said bracket with said casing for establishing anelectrical ground connection from the casing to the bracket.

RUDOLPH KOVAC.

